Effect of pH, Dissolved Inorganic Carbon and Orthophosphates on the Nature of Lead Particles and Associated Solubility in Water
Citation:
Formal, C., D. Lytle, S. Harmon, AND M. Nadagouda. Effect of pH, Dissolved Inorganic Carbon and Orthophosphates on the Nature of Lead Particles and Associated Solubility in Water. AWWA Annual Conference (ACE19), Denver, CO, June 09 - 12, 2019.
Impact/Purpose:
Lead exposure impacts the brain, kidneys, and cardiovascular system. Lead found in the blood can be correlated with the concentration of lead in drinking water. Orthophosphate is used to reduce lead at the consumer’s tap by forming relatively insoluble divalent lead orthophosphate compounds on the surface of lead materials. Chloropyromorphite has been identified as one of the most stable lead mineral found in distribution systems. Objective: Evaluate the impact of orthophosphate on lead mineralogy and solubility, and the physical properties associated with the lead particles.
Description:
Lead exposure impacts the brain, kidneys, and cardiovascular system. Lead found in the blood can be correlated with the concentration of lead in drinking water. Orthophosphate is used to reduce lead at the consumer’s tap by forming relatively insoluble divalent lead orthophosphate compounds on the surface of lead materials. Chloropyromorphite has been identified as one of the most stable lead mineral found in distribution systems. Objective: Evaluate the impact of orthophosphate on lead mineralogy and solubility, and the physical properties associated with the lead particles.